US20060169099A1 - Housing cover - Google Patents
Housing cover Download PDFInfo
- Publication number
- US20060169099A1 US20060169099A1 US11/330,463 US33046306A US2006169099A1 US 20060169099 A1 US20060169099 A1 US 20060169099A1 US 33046306 A US33046306 A US 33046306A US 2006169099 A1 US2006169099 A1 US 2006169099A1
- Authority
- US
- United States
- Prior art keywords
- housing cover
- housing
- contact region
- fastening means
- apertures
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2186—Gear casings
Definitions
- the present invention relates to a housing cover for fixing to a housing, in particular to a gear housing or a steering gear housing.
- Housing covers for closing apertures on a gear housing or on a steering gear housing are formed as aluminum cast parts, which are machined mechanically and are fitted to the relevant housing together with a seal configured separately from the cast part.
- the production and fitting of such known housing covers are expensive.
- the present invention is therefore based on the object of providing a housing cover of the type mentioned at the outset, which is simple to produce and fit.
- a housing cover with the features of the preamble of claim 1 in that the housing cover is configured as a sheet metal formed part, in that the housing cover is provided with a plurality of fastening means through-apertures and with a sealing bead, which comprises an elastomeric material and in that, when the housing cover is in a rest state prior to tightening the housing cover against the housing by means of the fastening means, at least one contact region portion of the inner side of the housing cover which faces the housing when the housing cover is in the fitted state, said contact region portion being located between two fastening means through-apertures and carrying a portion of the sealing bead, projects, at least in a section thereof, over the inside edges of the two adjacent fastening means through-apertures.
- the housing cover according to the invention is configured as a sheet metal formed part with an integrated seal in the form of the sealing bead provided on the housing cover, the housing cover according to the invention can be produced in a very economic manner, for example in a follow-on composite tool, from a sheet metal starting material.
- the fitting of the housing cover is also simplified, as the number of parts to be fitted is reduced.
- the housing cover Since the contact region portion of the inside of the housing cover, located between two fastening through-apertures, projects at least in sections over the inside edges of the two adjacent fastening means through-apertures, it is achieved, that, during its fitting, the housing cover firstly rests with these projecting regions of the contact region portion on the housing to be closed, before the fastening means are tightened, and consequently the inside edges of the two adjacent fastening means through-apertures also then come to rest on the housing to be closed.
- the variation in the surface pressure, with which the housing cover is braced against the housing to be closed is at least partially compensated in the longitudinal direction of the sealing bead, which variation is caused by the varying spacings from the respective closest fastening means, and therefore uniform resting of the contact region and, in particular, the sealing bead on the housing to be closed is achieved at each position of the contact region or the sealing bead.
- This topography of the contact region may be produced, in particular by a shoulder portioning and/or stamping process on the housing cover during the production thereof.
- the contact region portion viewed from the inside of the housing cover, is substantially convex.
- the housing cover has a substantially constant material thickness along the contact region portion.
- the housing cover has a varying material thickness in the longitudinal direction of the contact region portion.
- a variation of this type of the material thickness of the housing cover in the contact region may be produced, for example by a stamping process on a housing cover originally having a constant material thickness.
- the region of the outside of the housing cover opposing the contact region portion, which faces away from the housing to be closed when the housing cover is in the fitted state, may be substantially flat.
- the projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures may vary in the longitudinal direction of the contact region portion.
- the projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures is greatest approximately in the centre between the two adjacent fastening means through-apertures.
- the variation of the projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures may be established, in particular taking into account an internal pressure acting on the housing cover and/or taking into account external forces, which are transmitted to the housing cover via a coupling, for example a holder arranged on the outside of the housing cover, in such a way that the variation in the internal pressure forces or the external forces are substantially compensated in the longitudinal direction of the contact region portion, at least in sections.
- the housing cover is provided with an impressed groove, in which the sealing bead is arranged.
- the housing cover may be provided, to reinforce it, with a reinforcement element impressed into the housing cover.
- This reinforcement element may be configured, in particular, as a stiffening corrugation.
- the stiffening corrugation may, in this case have any desired cross-section, in particular may be configured as a full corrugation or half corrugation.
- the reinforcement element preferably extends at least in sections, substantially parallel to this groove.
- the sealing bead is preferably integrally connected in terms of material, to the base plate of the housing cover.
- the integral connection in terms of material may, in particular, be produced in that the sealing bead is provided by application of a free-flowing precursor material, for example by means of a dispenser nozzle, and subsequent vulcanising thereof or by means of a pattern printing method, in particular by means of a screen printing method, onto the housing cover.
- the precursor material used for the sealing bead may, in particular be a one-component silicone material or a two-component silicone material.
- the metallic base plate of the housing cover may be formed from any metallic material.
- the housing cover is configured as a sheet metal formed part made from aluminum or from an aluminum alloy.
- FIG. 1 shows a schematic perspective view of a housing cover, viewed from the inside of the housing cover facing the housing, in the fitted state;
- FIG. 2 shows a schematic cross-section through the housing cover from FIG. 1 , along the line 2 - 2 in FIG. 1 ;
- FIG. 3 shows an enlarged view of the region I from FIG. 2 ;
- FIG. 4 shows a schematic longitudinal section through the housing cover from FIG. 1 , in the rest state prior to the housing cover being fitted, along the line 4 - 4 in FIG. 1 ;
- FIG. 5 shows a schematic cross-section through the housing cover from FIG. 1 along the line 5 - 5 in FIG. 1 , with fastening screws penetrating the fastening means through-apertures of the housing cover;
- FIG. 6 shows a schematic longitudinal section corresponding to FIG. 4 through a second embodiment of a housing cover, in which the material thickness of the housing cover varies in contact region portions located between the fastening means through-apertures depending on the spacing from the closest fastening means through-aperture;
- FIG. 7 shows a schematic cross-section corresponding to FIG. 5 , through the second embodiment of a housing cover, with fastening screws penetrating the fastening means through-apertures;
- FIG. 8 shows a section-wise schematic perspective view of an edge region of a third embodiment of a housing cover, in which a sealing bead arranged on the housing cover annularly surrounds the fastening means through-apertures.
- a housing cover shown in FIG. 1 to 5 and designated as a whole by 100 is provided for closing a housing aperture on a gear housing (not shown) or on a steering gear housing.
- the housing cover 100 is substantially rectangular and comprises a metallic base plate 101 with a substantially flat central region 102 , which is surrounded by a peripheral edge region 104 , which is connected to the central region 102 of the housing cover 100 via an annularly extending shoulder portion 106 .
- the edge region 104 projects over the central region 102 in the direction pointing toward the housing to be closed when the housing cover 100 is in the fitted state.
- the edge region 104 is provided with a plurality of, for example six, fastening means through-apertures 108 , which run consecutively at a spacing from one another along the periphery of the housing cover 100 .
- fastening means through-apertures 108 are used, during fitting of the housing cover 100 to the housing to be closed, to receive the shanks of fastening screws 110 (see FIG. 5 ), which extend through the fastening means through-apertures 108 and are screwed into corresponding internal threads of threaded holes of the housing to be closed by their external threads.
- the edge region 104 of the housing cover 100 is also provided with an impressed groove 112 , which is configured on the inside of the edge region 104 facing the housing to be closed when the housing cover 100 is in the fitted state, substantially parallel to the shoulder portion 106 and in the form of a ring around the central region 102 of the housing cover 100 , the groove 112 extending, on the one hand, between the shoulder portion 106 and the fastening means through-apertures 108 , on the other hand.
- an annular projection 114 formed on the outside of the edge region 104 corresponds to the groove 112 extending on the inside of the edge region 104 .
- a sealing bead 116 which is arranged on the groove base 118 of the groove 112 and extends inside the groove 112 around the central region 102 of the housing cover 100 .
- the sealing bead 116 is formed from an elastomer material, for example from a silicone material and may be applied, for example, by application into the groove 112 by means of a dispenser or by a screen printing method.
- the width b of the sealing bead 116 i.e. the extent thereof transverse to the longitudinal direction of the groove 112 is, for example about 1.5 mm, with a total width B of the groove 112 of, for example about 2.5 mm.
- the height h of the sealing bead 116 above the groove base 118 is, for example about 120 ⁇ m+/ ⁇ 40 ⁇ m, with a groove depth H of, for example about 50 ⁇ m, so the sealing bead 116 , when the housing cover 100 is in the rest state, projects beyond the regions adjoining the groove 112 , of the housing cover 100 in the direction pointing toward the housing cover 100 , in the fitted state.
- the housing cover 100 is provided, in the contact region 120 , with a topography, i.e. the contact region portions 122 of the housing cover 100 , located between two respective fastening means through-apertures 108 , are configured such that, when the housing cover 100 is in the rest state, i.e. before the housing cover 100 is tightened against the housing to be closed by means of the fastening screws 110 , they project over the inside edges of the respectively adjacent fastening means through-apertures 108 in the direction pointing toward the housing to be closed, when the housing cover 100 is in the fitted state, as is shown schematically in the longitudinal section of FIG. 4 .
- the housing cover 100 firstly rests with the central regions of the contact regions portions 122 located approximately in the centre between two respective fastening means through-apertures 108 , on the housing to be closed, before the fastening screws 110 are tightened, and consequently the regions surrounding the inside edges of the fastening means through-apertures 108 , of the housing cover 100 also come to rest on the housing to be closed.
- the variation in the surface pressure, with which the housing cover 100 is braced against the housing to be closed is at least partially compensated in the longitudinal direction of the sealing bead 116 , which variation is caused by the varying spacings from the respective closest fastening screw 110 , and therefore uniform resting of the contact region 120 and in particular of the sealing bead 116 on the housing to be closed is achieved at each location of the contact region 120 or of the sealing bead 116 .
- This topography of the contact region 120 is produced by a shoulder portioning and/or stamping process on the housing cover 100 , the material thickness of the housing cover 100 along the contact region 120 remaining substantially constant.
- the contact region 120 is bent in such a way that it is convexly curved in the contact region portions 122 located between two respective adjacent fastening means through-apertures 108 , viewed from the inside of the housing cover 100 .
- the housing cover 100 is punched out with the desired outer contour and the fastening means through-apertures 108 from a metal sheet of a metallic material, in particular from an aluminum metal sheet.
- the housing cover 100 is provided in the follow-on composite tool by means of suitable forming tools, with the impressed groove 112 , with the shoulder portion 106 and with the above-described topography of the contact region 120 .
- the sealing bead 116 is then produced from the elastomer material on the groove base 118 of the groove 112 by a screen printing method.
- a second embodiment of a housing cover 100 shown in FIGS. 6 and 7 differs from the first embodiment described above merely in that the material thickness of the housing cover 100 along the contact region portions 122 is not substantially constant, but varies in the longitudinal direction of the contact region portions 122 as a function of the spacing from the respective closest fastening means through-aperture 108 .
- the housing cover 100 in this embodiment is configured such that the material thickness of the housing cover 100 is greatest approximately in the centre between two fastening means through-apertures 108 following one another in the peripheral direction of the housing cover 100 and tapers from there toward the fastening means through-apertures 108 .
- This course of the material thickness of the housing cover 100 in the contact region 120 can be produced, for example, by a stamping process on a housing cover 100 originally having a constant material thickness.
- the region 124 of the outside of the housing cover 100 opposing the contact region 120 may be substantially flat.
- FIGS. 6 and 7 coincides with the first embodiment with regard to structure, function and mode of production, and the above description thereof is referred to in this respect.
- a third embodiment of a housing cover 100 shown sectionally in FIG. 8 differs from the two embodiments described above in that the groove 112 and the sealing bead 116 do not extend throughout between the fastening means through-apertures 108 , on the one hand, and the shoulder portion 106 on the other hand, but branch (viewed in the peripheral direction of the housing cover 100 ) in each case, before a fastening means through-aperture 108 and run together again after passing the fastening means through-aperture 108 (both to the left and right of the fastening means through-aperture 108 ), so each fastening means through-aperture 108 is enclosed in ring-like manner by the groove 112 and also by the sealing bead 116 .
- each fastening means through-aperture 108 is sealed in a fluid-tight manner both toward the central region 102 of the housing cover 100 and also toward the outer edge of the housing cover 100 by the sealing bead 116 .
- the third embodiment of a housing cover 100 is provided with a stiffening corrugation 126 which reinforces the housing cover 100 and is configured on the inner edge of the shoulder portion 106 , parallel thereto, which edge faces the central region 102 .
- the third embodiment of a housing cover 100 shown in FIG. 8 coincides with the two first embodiments with regard to structure, function and mode of production, and reference is made to the above description thereof, in this respect.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Gasket Seals (AREA)
- General Details Of Gearings (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Closures For Containers (AREA)
- Dry Shavers And Clippers (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Sealing Devices (AREA)
Abstract
In order to provide a housing cover for fixing to a housing, in particular to a gear housing or a steering gear housing, which is simple to produce and to fit, it is proposed that the housing cover is configured as a sheet metal formed part, that the housing cover is provided with a plurality of fastening means through-apertures and with a sealing bead, which comprises an elastomeric material, and that when the housing cover is in a rest state prior to tightening the housing cover against the housing by means of the fastening means, at least one contact region portion of the inside of the housing cover which faces the housing when the housing cover is in the fitted state, said contact region portion being located between two fastening means through-apertures and carrying a portion of the sealing bead, projects, at least in a section thereof, over the inside edges of the two adjacent fastening means through-apertures.
Description
- The present disclosure relates to the subject matter disclosed in German patent application No. 10 2005 003 414.4 of Jan. 25, 2005, the entire specification of which is incorporated herein by reference.
- The present invention relates to a housing cover for fixing to a housing, in particular to a gear housing or a steering gear housing.
- Housing covers for closing apertures on a gear housing or on a steering gear housing, as known from the prior art, are formed as aluminum cast parts, which are machined mechanically and are fitted to the relevant housing together with a seal configured separately from the cast part. The production and fitting of such known housing covers are expensive.
- The present invention is therefore based on the object of providing a housing cover of the type mentioned at the outset, which is simple to produce and fit.
- This object is achieved according to the invention in a housing cover with the features of the preamble of claim 1 in that the housing cover is configured as a sheet metal formed part, in that the housing cover is provided with a plurality of fastening means through-apertures and with a sealing bead, which comprises an elastomeric material and in that, when the housing cover is in a rest state prior to tightening the housing cover against the housing by means of the fastening means, at least one contact region portion of the inner side of the housing cover which faces the housing when the housing cover is in the fitted state, said contact region portion being located between two fastening means through-apertures and carrying a portion of the sealing bead, projects, at least in a section thereof, over the inside edges of the two adjacent fastening means through-apertures.
- Since the housing cover according to the invention is configured as a sheet metal formed part with an integrated seal in the form of the sealing bead provided on the housing cover, the housing cover according to the invention can be produced in a very economic manner, for example in a follow-on composite tool, from a sheet metal starting material.
- Since the seal is integrated in the form of the sealing bead on the housing cover, the fitting of the housing cover is also simplified, as the number of parts to be fitted is reduced.
- Since the contact region portion of the inside of the housing cover, located between two fastening through-apertures, projects at least in sections over the inside edges of the two adjacent fastening means through-apertures, it is achieved, that, during its fitting, the housing cover firstly rests with these projecting regions of the contact region portion on the housing to be closed, before the fastening means are tightened, and consequently the inside edges of the two adjacent fastening means through-apertures also then come to rest on the housing to be closed. Owing to the topography of the contact region of the housing cover designed in this way, with the housing to be closed, the variation in the surface pressure, with which the housing cover is braced against the housing to be closed is at least partially compensated in the longitudinal direction of the sealing bead, which variation is caused by the varying spacings from the respective closest fastening means, and therefore uniform resting of the contact region and, in particular, the sealing bead on the housing to be closed is achieved at each position of the contact region or the sealing bead.
- This topography of the contact region may be produced, in particular by a shoulder portioning and/or stamping process on the housing cover during the production thereof.
- In a preferred configuration of the invention, it is provided that the contact region portion, viewed from the inside of the housing cover, is substantially convex.
- In a configuration of the invention it is provided that the housing cover has a substantially constant material thickness along the contact region portion.
- As an alternative to this, it may also be provided, that, along the contact region portion, the housing cover has a varying material thickness in the longitudinal direction of the contact region portion. A variation of this type of the material thickness of the housing cover in the contact region may be produced, for example by a stamping process on a housing cover originally having a constant material thickness.
- The region of the outside of the housing cover opposing the contact region portion, which faces away from the housing to be closed when the housing cover is in the fitted state, may be substantially flat.
- The projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures may vary in the longitudinal direction of the contact region portion.
- It is preferably provided that the projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures is greatest approximately in the centre between the two adjacent fastening means through-apertures.
- The variation of the projection (x) of the contact region portion over the inside edges of the two adjacent fastening means through-apertures may be established, in particular taking into account an internal pressure acting on the housing cover and/or taking into account external forces, which are transmitted to the housing cover via a coupling, for example a holder arranged on the outside of the housing cover, in such a way that the variation in the internal pressure forces or the external forces are substantially compensated in the longitudinal direction of the contact region portion, at least in sections.
- In a preferred configuration of the invention, it is also provided that the housing cover is provided with an impressed groove, in which the sealing bead is arranged.
- Furthermore, the housing cover may be provided, to reinforce it, with a reinforcement element impressed into the housing cover.
- This reinforcement element may be configured, in particular, as a stiffening corrugation.
- The stiffening corrugation may, in this case have any desired cross-section, in particular may be configured as a full corrugation or half corrugation.
- If the housing cover is provided with a groove impressed into the housing cover, in which the sealing bead is arranged, the reinforcement element preferably extends at least in sections, substantially parallel to this groove.
- The sealing bead is preferably integrally connected in terms of material, to the base plate of the housing cover.
- The integral connection in terms of material, may, in particular, be produced in that the sealing bead is provided by application of a free-flowing precursor material, for example by means of a dispenser nozzle, and subsequent vulcanising thereof or by means of a pattern printing method, in particular by means of a screen printing method, onto the housing cover.
- The precursor material used for the sealing bead may, in particular be a one-component silicone material or a two-component silicone material.
- Basically, the metallic base plate of the housing cover may be formed from any metallic material.
- In a preferred configuration of the embodiment it is provided that the housing cover is configured as a sheet metal formed part made from aluminum or from an aluminum alloy.
- Further features and advantages of the invention are the subject of the following description and the graphic view of embodiments.
-
FIG. 1 shows a schematic perspective view of a housing cover, viewed from the inside of the housing cover facing the housing, in the fitted state; -
FIG. 2 shows a schematic cross-section through the housing cover fromFIG. 1 , along the line 2-2 inFIG. 1 ; -
FIG. 3 shows an enlarged view of the region I fromFIG. 2 ; -
FIG. 4 shows a schematic longitudinal section through the housing cover fromFIG. 1 , in the rest state prior to the housing cover being fitted, along the line 4-4 inFIG. 1 ; -
FIG. 5 shows a schematic cross-section through the housing cover fromFIG. 1 along the line 5-5 inFIG. 1 , with fastening screws penetrating the fastening means through-apertures of the housing cover; -
FIG. 6 shows a schematic longitudinal section corresponding toFIG. 4 through a second embodiment of a housing cover, in which the material thickness of the housing cover varies in contact region portions located between the fastening means through-apertures depending on the spacing from the closest fastening means through-aperture; -
FIG. 7 shows a schematic cross-section corresponding toFIG. 5 , through the second embodiment of a housing cover, with fastening screws penetrating the fastening means through-apertures; and -
FIG. 8 shows a section-wise schematic perspective view of an edge region of a third embodiment of a housing cover, in which a sealing bead arranged on the housing cover annularly surrounds the fastening means through-apertures. - The same or functionally equivalent elements are designated by the same reference numerals in all the figures.
- A housing cover shown in
FIG. 1 to 5 and designated as a whole by 100 is provided for closing a housing aperture on a gear housing (not shown) or on a steering gear housing. - The
housing cover 100 is substantially rectangular and comprises ametallic base plate 101 with a substantially flatcentral region 102, which is surrounded by aperipheral edge region 104, which is connected to thecentral region 102 of thehousing cover 100 via an annularly extendingshoulder portion 106. - The
edge region 104 projects over thecentral region 102 in the direction pointing toward the housing to be closed when thehousing cover 100 is in the fitted state. - The
edge region 104 is provided with a plurality of, for example six, fastening means through-apertures 108, which run consecutively at a spacing from one another along the periphery of thehousing cover 100. - These fastening means through-
apertures 108 are used, during fitting of thehousing cover 100 to the housing to be closed, to receive the shanks of fastening screws 110 (seeFIG. 5 ), which extend through the fastening means through-apertures 108 and are screwed into corresponding internal threads of threaded holes of the housing to be closed by their external threads. - The
edge region 104 of thehousing cover 100 is also provided with animpressed groove 112, which is configured on the inside of theedge region 104 facing the housing to be closed when thehousing cover 100 is in the fitted state, substantially parallel to theshoulder portion 106 and in the form of a ring around thecentral region 102 of thehousing cover 100, thegroove 112 extending, on the one hand, between theshoulder portion 106 and the fastening means through-apertures 108, on the other hand. - As the
groove 112 is formed by stamping in theedge region 104 of thehousing cover 100, anannular projection 114 formed on the outside of theedge region 104 corresponds to thegroove 112 extending on the inside of theedge region 104. - Provided for fluid-tight sealing between the
housing cover 100 and the housing to be closed is asealing bead 116, which is arranged on thegroove base 118 of thegroove 112 and extends inside thegroove 112 around thecentral region 102 of thehousing cover 100. - The
sealing bead 116 is formed from an elastomer material, for example from a silicone material and may be applied, for example, by application into thegroove 112 by means of a dispenser or by a screen printing method. - The width b of the
sealing bead 116, i.e. the extent thereof transverse to the longitudinal direction of thegroove 112 is, for example about 1.5 mm, with a total width B of thegroove 112 of, for example about 2.5 mm. - The height h of the
sealing bead 116 above thegroove base 118 is, for example about 120 μm+/−40 μm, with a groove depth H of, for example about 50 μm, so thesealing bead 116, when thehousing cover 100 is in the rest state, projects beyond the regions adjoining thegroove 112, of thehousing cover 100 in the direction pointing toward thehousing cover 100, in the fitted state. - The
groove 112 with thesealing bead 116 and the regions of theedge region 104 of thehousing 100 adjoining thegroove 112 together form acontact region 120 of thehousing cover 100, with which thehousing cover 100, in the fitted state, rests on the housing to be closed. - In order to ensure that the
housing cover 100 rests uniformly on the housing to be closed, thehousing cover 100 is provided, in thecontact region 120, with a topography, i.e. thecontact region portions 122 of thehousing cover 100, located between two respective fastening means through-apertures 108, are configured such that, when thehousing cover 100 is in the rest state, i.e. before thehousing cover 100 is tightened against the housing to be closed by means of the fasteningscrews 110, they project over the inside edges of the respectively adjacent fastening means through-apertures 108 in the direction pointing toward the housing to be closed, when thehousing cover 100 is in the fitted state, as is shown schematically in the longitudinal section ofFIG. 4 . - It is achieved in this manner that, during its fitting, the
housing cover 100 firstly rests with the central regions of thecontact regions portions 122 located approximately in the centre between two respective fastening means through-apertures 108, on the housing to be closed, before the fasteningscrews 110 are tightened, and consequently the regions surrounding the inside edges of the fastening means through-apertures 108, of thehousing cover 100 also come to rest on the housing to be closed. - Owing to the topography of the
contact region 120 of thehousing cover 100 thus formed, the variation in the surface pressure, with which thehousing cover 100 is braced against the housing to be closed, is at least partially compensated in the longitudinal direction of thesealing bead 116, which variation is caused by the varying spacings from the respectiveclosest fastening screw 110, and therefore uniform resting of thecontact region 120 and in particular of thesealing bead 116 on the housing to be closed is achieved at each location of thecontact region 120 or of thesealing bead 116. - This topography of the
contact region 120 is produced by a shoulder portioning and/or stamping process on thehousing cover 100, the material thickness of thehousing cover 100 along thecontact region 120 remaining substantially constant. - The
contact region 120 is bent in such a way that it is convexly curved in thecontact region portions 122 located between two respective adjacent fastening means through-apertures 108, viewed from the inside of thehousing cover 100. - To produce the above-described
housing cover 100, the procedure is as follows: - In a follow-on composite tool, the
housing cover 100 is punched out with the desired outer contour and the fastening means through-apertures 108 from a metal sheet of a metallic material, in particular from an aluminum metal sheet. - Furthermore, the
housing cover 100 is provided in the follow-on composite tool by means of suitable forming tools, with theimpressed groove 112, with theshoulder portion 106 and with the above-described topography of thecontact region 120. - The sealing
bead 116 is then produced from the elastomer material on thegroove base 118 of thegroove 112 by a screen printing method. - A second embodiment of a
housing cover 100 shown inFIGS. 6 and 7 differs from the first embodiment described above merely in that the material thickness of thehousing cover 100 along thecontact region portions 122 is not substantially constant, but varies in the longitudinal direction of thecontact region portions 122 as a function of the spacing from the respective closest fastening means through-aperture 108. - In particular, the
housing cover 100 in this embodiment is configured such that the material thickness of thehousing cover 100 is greatest approximately in the centre between two fastening means through-apertures 108 following one another in the peripheral direction of thehousing cover 100 and tapers from there toward the fastening means through-apertures 108. - This course of the material thickness of the
housing cover 100 in thecontact region 120 can be produced, for example, by a stamping process on ahousing cover 100 originally having a constant material thickness. - The
region 124 of the outside of thehousing cover 100 opposing thecontact region 120 may be substantially flat. - Otherwise, the second embodiment of a
housing cover 100 shown inFIGS. 6 and 7 coincides with the first embodiment with regard to structure, function and mode of production, and the above description thereof is referred to in this respect. - A third embodiment of a
housing cover 100 shown sectionally inFIG. 8 differs from the two embodiments described above in that thegroove 112 and the sealingbead 116 do not extend throughout between the fastening means through-apertures 108, on the one hand, and theshoulder portion 106 on the other hand, but branch (viewed in the peripheral direction of the housing cover 100) in each case, before a fastening means through-aperture 108 and run together again after passing the fastening means through-aperture 108 (both to the left and right of the fastening means through-aperture 108), so each fastening means through-aperture 108 is enclosed in ring-like manner by thegroove 112 and also by the sealingbead 116. - It is thus achieved that the region of each fastening means through-
aperture 108 is sealed in a fluid-tight manner both toward thecentral region 102 of thehousing cover 100 and also toward the outer edge of thehousing cover 100 by the sealingbead 116. - Furthermore, the third embodiment of a
housing cover 100 is provided with a stiffeningcorrugation 126 which reinforces thehousing cover 100 and is configured on the inner edge of theshoulder portion 106, parallel thereto, which edge faces thecentral region 102. - Otherwise, the third embodiment of a
housing cover 100 shown inFIG. 8 coincides with the two first embodiments with regard to structure, function and mode of production, and reference is made to the above description thereof, in this respect.
Claims (14)
1. Housing cover for fixing to a housing, in particular to a gear housing or a steering gear housing, wherein the housing cover is configured as a sheet metal formed part, wherein the housing cover is provided with a plurality of fastening means through-apertures and with a sealing bead, which comprises an elastomeric material, and wherein when the housing cover is in a rest state prior to tightening the housing cover against the housing by means of the fastening means, at least one contact region portion of the inside of the housing cover which faces the housing when the housing cover is in the fitted state, said contact region portion being located between two fastening means through-apertures and carrying a portion of the sealing bead, projects, at least in a section thereof, over the inside edges of the two adjacent fastening means through-apertures.
2. Housing cover according to claim 1 , wherein the contact region portion, viewed from the inside of the housing cover, is substantially convex.
3. Housing cover according to claim 1 , wherein the housing cover has a substantially constant material thickness along the contact region portion.
4. Housing cover according to claim 1 , wherein, along the contact region portion, the housing cover has a material thickness which varies in the longitudinal direction of the contact region portion.
5. Housing cover according to claim 1 , wherein the region of the outside of the housing cover opposing the contact region portion is substantially flat.
6. Housing cover according to claim 1 , wherein the projection of the contact region portion over the inside edges of the two adjacent fastening means through-apertures varies in the longitudinal direction of the contact region portion.
7. Housing cover according to claim 6 , wherein the projection of the contact region portion over the inside edges of the two adjacent fastening means through-apertures is greatest approximately in the centre between the two adjacent fastening means through-apertures.
8. Housing cover according to claim 1 , wherein the housing cover is provided with an impressed groove in which the sealing bead is arranged.
9. Housing cover according to claim 1 , wherein the housing cover is provided with a reinforcement element impressed in the housing cover.
10. Housing cover according to claim 9 , wherein the reinforcement element is configured as a stiffening corrugation.
11. Housing cover according to claim 9 , wherein the reinforcement element extends, at least in sections, substantially parallel to a groove impressed in the housing cover, in which groove the sealing bead is arranged.
12. Housing cover according to claim 1 , wherein the sealing bead is integrally connected to a base plate of the housing cover.
13. Housing cover according to claim 12 , wherein the sealing bead is provided by application by means of a dispenser and/or by means of a pattern printing method, in particular by means of a screen printing method, onto the housing cover.
14. Housing cover according to claim 1 , wherein the housing cover is configured as a sheet metal formed part made of aluminum or of an aluminum alloy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/374,889 US20120198961A1 (en) | 2005-01-25 | 2012-01-20 | Housing cover |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005003414.4 | 2005-01-25 | ||
DE102005003414A DE102005003414A1 (en) | 2005-01-25 | 2005-01-25 | housing cover |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/374,889 Continuation US20120198961A1 (en) | 2005-01-25 | 2012-01-20 | Housing cover |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060169099A1 true US20060169099A1 (en) | 2006-08-03 |
Family
ID=36202519
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/330,463 Abandoned US20060169099A1 (en) | 2005-01-25 | 2006-01-12 | Housing cover |
US13/374,889 Abandoned US20120198961A1 (en) | 2005-01-25 | 2012-01-20 | Housing cover |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/374,889 Abandoned US20120198961A1 (en) | 2005-01-25 | 2012-01-20 | Housing cover |
Country Status (5)
Country | Link |
---|---|
US (2) | US20060169099A1 (en) |
EP (2) | EP1683997B1 (en) |
JP (1) | JP2006207814A (en) |
AT (2) | ATE411490T1 (en) |
DE (3) | DE102005003414A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8708358B2 (en) * | 2012-04-20 | 2014-04-29 | Arctic Cat Inc. | Compact steering mechanism |
KR20180127486A (en) * | 2016-05-24 | 2018-11-28 | 가부시키가이샤 덴소 | Valve device |
US10151306B2 (en) | 2011-06-09 | 2018-12-11 | Mitsubishi Heavy Industries, Ltd. | Electric compressor |
US10792980B2 (en) | 2014-07-03 | 2020-10-06 | Volkswagen Aktiengesellschaft | Panel for a vehicle interior and ventilation arrangement for a motor vehicle |
US11991849B2 (en) | 2018-10-12 | 2024-05-21 | Elringklinger Ag | Housing cover |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007027186A1 (en) * | 2007-06-13 | 2008-12-18 | Robert Bosch Gmbh | Hand tool |
DE102008062681A1 (en) * | 2008-12-17 | 2010-07-01 | Elringklinger Ag | Trough-shaped, metallic deep-drawing sheet metal molded part for combustion engines such as oil pans and valve bonnets, has strand-shaped elastomer sealing for pressing against sealing surface of machine component |
DE102012200099A1 (en) * | 2012-01-05 | 2013-07-11 | Schaeffler Technologies AG & Co. KG | Phaser |
DE102012023857A1 (en) | 2012-12-06 | 2014-06-12 | Mann + Hummel Gmbh | Sealing arrangement for internal combustion engine, has crankcase with flange section with sealing surface and oil pan partially formed from plastic material, where oil pan has another flange section |
US8857293B2 (en) * | 2013-03-11 | 2014-10-14 | American Axle & Manufacturing, Inc. | Power transmitting component with multi-part housing assembly having continuous sealing flange |
FR3006976B1 (en) | 2013-06-14 | 2016-02-26 | Autoliv Dev | WHEEL OF VEHICLE |
CN107542930A (en) * | 2016-06-29 | 2018-01-05 | 博西华电器(江苏)有限公司 | Household electrical appliance and its sealing structure |
DE102018214675B3 (en) | 2018-08-29 | 2019-12-12 | Audi Ag | Method for producing a housing and motor vehicle |
DE102020109893A1 (en) | 2020-04-08 | 2021-10-14 | Elringklinger Ag | Housing cover |
DE102020109899A1 (en) | 2020-04-08 | 2021-10-14 | Elringklinger Ag | Housing cover and method for producing a housing cover |
DE102020109895A1 (en) | 2020-04-08 | 2021-10-14 | Elringklinger Ag | Housing cover and method for producing a housing cover |
DE102020124275A1 (en) | 2020-09-17 | 2022-03-17 | Elringklinger Ag | Housing element, combination of a housing element and a further housing part, and method for producing a housing element |
DE102020126390A1 (en) | 2020-10-08 | 2022-04-14 | Elringklinger Ag | housing part |
DE102021104649A1 (en) | 2021-02-26 | 2022-09-01 | Schaeffler Technologies AG & Co. KG | Steering actuator for rear axle steering and method of assembling a steering actuator |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1318706A (en) * | 1919-10-14 | Willakd e | ||
US4128046A (en) * | 1977-01-07 | 1978-12-05 | Bendiberica, S. A. | Power steering mechanism |
US4484751A (en) * | 1983-02-19 | 1984-11-27 | Goetze Ag | Crankcase housing cover with sealing means |
US4625581A (en) * | 1985-01-10 | 1986-12-02 | Ford Motor Company | Automotive component cover |
US5095773A (en) * | 1989-02-13 | 1992-03-17 | Nissan Motor Company, Ltd. | Joining structure of vehicular power plant |
US5513603A (en) * | 1995-08-11 | 1996-05-07 | Chrysler Corporation | Seal and fastener isolator system for a valve cover |
US6407925B1 (en) * | 1999-09-17 | 2002-06-18 | Denso Corporation | Casing for electronic control devices |
US20030110885A1 (en) * | 2001-12-14 | 2003-06-19 | Beutler Kevin Ray | Differential cover for a vehicle that provides uniform sealing |
US6997238B1 (en) * | 2001-02-27 | 2006-02-14 | W.S. Darley & Co. | Cooler plate and gearbox assembly |
US7004879B2 (en) * | 2004-01-12 | 2006-02-28 | American Axle & Manufacturing, Inc. | Axle differential with stamped carrier cover pan |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8801471U1 (en) * | 1988-02-05 | 1988-03-17 | KLIFA - Fahrzeugteile GmbH & Co, 6800 Mannheim | Tub |
JPH0759697B2 (en) * | 1990-03-09 | 1995-06-28 | 信越化学工業株式会社 | Hard disk drive cover and packing assembly |
JP2538822B2 (en) * | 1992-04-10 | 1996-10-02 | 信越化学工業株式会社 | Cover packing assembly for hard disk device and manufacturing method thereof |
DE4426910C2 (en) * | 1994-07-29 | 1999-02-04 | Cr Elastomere Gmbh | Housing cover |
DE10245803A1 (en) * | 2002-10-01 | 2004-04-22 | Mann + Hummel Gmbh | sealing arrangement |
-
2005
- 2005-01-25 DE DE102005003414A patent/DE102005003414A1/en not_active Withdrawn
- 2005-12-20 DE DE502005005722T patent/DE502005005722D1/en active Active
- 2005-12-20 EP EP05027829A patent/EP1683997B1/en active Active
- 2005-12-20 DE DE502005004263T patent/DE502005004263D1/en active Active
- 2005-12-20 EP EP07016609A patent/EP1855044B1/en active Active
- 2005-12-20 AT AT07016609T patent/ATE411490T1/en not_active IP Right Cessation
- 2005-12-20 AT AT05027829T patent/ATE397184T1/en not_active IP Right Cessation
-
2006
- 2006-01-12 US US11/330,463 patent/US20060169099A1/en not_active Abandoned
- 2006-01-19 JP JP2006011177A patent/JP2006207814A/en active Pending
-
2012
- 2012-01-20 US US13/374,889 patent/US20120198961A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1318706A (en) * | 1919-10-14 | Willakd e | ||
US4128046A (en) * | 1977-01-07 | 1978-12-05 | Bendiberica, S. A. | Power steering mechanism |
US4484751A (en) * | 1983-02-19 | 1984-11-27 | Goetze Ag | Crankcase housing cover with sealing means |
US4625581A (en) * | 1985-01-10 | 1986-12-02 | Ford Motor Company | Automotive component cover |
US5095773A (en) * | 1989-02-13 | 1992-03-17 | Nissan Motor Company, Ltd. | Joining structure of vehicular power plant |
US5513603A (en) * | 1995-08-11 | 1996-05-07 | Chrysler Corporation | Seal and fastener isolator system for a valve cover |
US6407925B1 (en) * | 1999-09-17 | 2002-06-18 | Denso Corporation | Casing for electronic control devices |
US6997238B1 (en) * | 2001-02-27 | 2006-02-14 | W.S. Darley & Co. | Cooler plate and gearbox assembly |
US20030110885A1 (en) * | 2001-12-14 | 2003-06-19 | Beutler Kevin Ray | Differential cover for a vehicle that provides uniform sealing |
US6675676B2 (en) * | 2001-12-14 | 2004-01-13 | Americam Axle & Manufacturing, Inc. | Differential cover for a vehicle that provides uniform sealing |
US7004879B2 (en) * | 2004-01-12 | 2006-02-28 | American Axle & Manufacturing, Inc. | Axle differential with stamped carrier cover pan |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10151306B2 (en) | 2011-06-09 | 2018-12-11 | Mitsubishi Heavy Industries, Ltd. | Electric compressor |
US8708358B2 (en) * | 2012-04-20 | 2014-04-29 | Arctic Cat Inc. | Compact steering mechanism |
US10792980B2 (en) | 2014-07-03 | 2020-10-06 | Volkswagen Aktiengesellschaft | Panel for a vehicle interior and ventilation arrangement for a motor vehicle |
KR20180127486A (en) * | 2016-05-24 | 2018-11-28 | 가부시키가이샤 덴소 | Valve device |
EP3467361A4 (en) * | 2016-05-24 | 2019-05-01 | Denso Corporation | Valve device |
KR102072460B1 (en) * | 2016-05-24 | 2020-02-03 | 가부시키가이샤 덴소 | Valve device |
US10578060B2 (en) | 2016-05-24 | 2020-03-03 | Denso Corporation | Valve device |
US11991849B2 (en) | 2018-10-12 | 2024-05-21 | Elringklinger Ag | Housing cover |
Also Published As
Publication number | Publication date |
---|---|
EP1683997B1 (en) | 2008-05-28 |
EP1683997A3 (en) | 2007-01-10 |
EP1855044B1 (en) | 2008-10-15 |
EP1683997A2 (en) | 2006-07-26 |
EP1855044A2 (en) | 2007-11-14 |
US20120198961A1 (en) | 2012-08-09 |
JP2006207814A (en) | 2006-08-10 |
DE102005003414A1 (en) | 2006-07-27 |
ATE411490T1 (en) | 2008-10-15 |
DE502005005722D1 (en) | 2008-11-27 |
ATE397184T1 (en) | 2008-06-15 |
DE502005004263D1 (en) | 2008-07-10 |
EP1855044A3 (en) | 2007-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20060169099A1 (en) | Housing cover | |
US7204491B2 (en) | Metal gasket | |
US6250645B1 (en) | Gasket with annular sealing projection and groove | |
EP1033511B2 (en) | Gasket with compressible sealing member and hard support layer | |
EP3239563B1 (en) | Metal gasket | |
SK30594A3 (en) | Cylinder head gasket mainly for internal combustion engines, and method of its manufacturing | |
EP0500316B1 (en) | Metal laminate gasket with double seal rings | |
EP0819872B1 (en) | Metal gasket with a seal ring | |
KR100824335B1 (en) | Cylinder head gasket | |
EP1522771B1 (en) | Metal gasket | |
US6382158B1 (en) | Two-piece valve cover | |
EP1327800B1 (en) | Metal glasket with coating at flange and method of forming the same | |
JPH1136980A (en) | Metallic laminated-gasket | |
JP2004360913A (en) | Cylinder head gasket | |
US6168166B1 (en) | Metal gasket with two half beads | |
EP1098114A2 (en) | Metal gasket assembly for cylinder head | |
EP0809052B1 (en) | Metal laminate gasket with mutual laminating portions | |
US20050140096A1 (en) | Multilayer gasket containing at least one shim of increased thickness | |
US4669740A (en) | Cylinder head gasket | |
KR980010068A (en) | Cylinder head gasket | |
US6428016B1 (en) | Metal cylinder head gasket with compressibility adjusting slits | |
EP1197688B1 (en) | Metal laminate gasket with bore ring and engaging members thereof | |
US20060284382A1 (en) | Multi-layer metallic flat gasket | |
JPH1163228A (en) | Metallic gasket | |
US20070262537A1 (en) | Method for the Production of a Flat Seal, and Flat Seal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ELRINGKLINGER AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIEZ, ARMIN;REEL/FRAME:017750/0372 Effective date: 20060315 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |